20804956256

素因数分解:

$2^5\times 7^2\times {\mathrm{43}}^1\times {\mathrm{308569}}^1$

素因数の和:308636

約数の個数: 72

約数和(自身を含む): 48755294280

約数和(自身を除く): 27950338024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 49, 56, 86, 98, 112, 172, 196, 224, 301, 344, 392, 602, 688, 784, 1204, 1376, 1568, 2107, 2408, 4214, 4816, 8428, 9632, 16856, 33712, 67424, 308569, 617138, 1234276, 2159983, 2468552, 4319966, 4937104, 8639932, 9874208, 13268467, 15119881, 17279864, 26536934, 30239762, 34559728, 53073868, 60479524, 69119456, 92879269, 106147736, 120959048, 185758538, 212295472, 241918096, 371517076, 424590944, 483836192, 650154883, 743034152, 1300309766, 1486068304, 2600619532, 2972136608, 5201239064, 10402478128, 20804956256]

約数ペア:

[(1, 20804956256), (2, 10402478128), (4, 5201239064), (7, 2972136608), (8, 2600619532), (14, 1486068304), (16, 1300309766), (28, 743034152), (32, 650154883), (43, 483836192), (49, 424590944), (56, 371517076), (86, 241918096), (98, 212295472), (112, 185758538), (172, 120959048), (196, 106147736), (224, 92879269), (301, 69119456), (344, 60479524), (392, 53073868), (602, 34559728), (688, 30239762), (784, 26536934), (1204, 17279864), (1376, 15119881), (1568, 13268467), (2107, 9874208), (2408, 8639932), (4214, 4937104), (4816, 4319966), (8428, 2468552), (9632, 2159983), (16856, 1234276), (33712, 617138), (67424, 308569)]